Health & Fitness Suite
Calories Burned Calculator
Track your active energy expenditure. Calculate calories burned using standard scientific MET values tailored to your weight and workout duration.
1. Activity & Body Parameters
Total Calories Burned
0
Active Kilocalories (kcal)
🍕 Food Equivalents Fun Fact
Pizza Slices 🍕 0 slices
Glazed Donuts 🍩 0 donuts
Soda Cans 🥤 0 cans
Estimates are based on average portion sizes. Good work on burning these off!
🏃♂️ The Science of MET Values & Energy Expenditure
A Metabolic Equivalent of Task (MET) is a physiological measure expressing the energy cost of physical activities. One MET is defined as the rate of energy expenditure while sitting quietly, which is approximately 3.5 milliliters of oxygen consumed per kilogram of body weight per minute.
Mathematical Equations of Caloric Burn
To calculate the precise calories burned during a specific duration of exercise, scientists multiply the activity's MET value by the user's metabolic rate:
- Oxygen Consumption Rate:
VO2 (ml/min) = MET × 3.5 × Weight (kg) - Kilocalorie Expenditure Equation:
Given that burning 1 liter of oxygen consumes approximately 5 kilocalories (kcal) of energy, the formula for calorie expenditure per minute is:
Calories Burned (kcal/min) = MET × 0.0175 × Weight (kg)Where the coefficient 0.0175 accounts for oxygen-to-calorie conversion factors (3.5 ÷ 1000 × 5 = 0.0175). - Total Workout Burn:
Total kcal = MET × 0.0175 × Weight (kg) × Duration (mins)
Standardized MET Reference Table
Exercise researchers catalog MET values across various activities. The options in this calculator reflect standardized parameters:
- Running (moderate speed, 6 mph): 10.0 METs — High aerobic activity requiring significant cardiac demand.
- Cycling (moderate speed, 12-14 mph): 7.5 METs — Excellent lower-body muscular and cardiovascular exercise.
- Swimming (leisurely/moderate crawl): 7.0 METs — Low-impact full-body resistance.
- Weightlifting (active sets, moderate rest): 5.0 METs — Anaerobic strength building and functional muscle stimulation.
- Walking (moderate pace, 3 mph): 3.5 METs — Fundamental active recovery and low-impact fitness.
- Yoga (Hatha/active flexibility sets): 2.5 METs — Restorative stretching, flexibility, and mind-body balance.